A set of football matches is to be organized in a "round-robin" fashion, i.e., every
A set of football matches is to be organized in a "round-robin" fashion, i.e., every
participating team plays a match against every other team once and only once. If 2
matches are totally played, how many teams participated?
Answer/Solution
2
Steps/Work
2 ways to solve this problem..
summation(x)=n(n-1)/2
n(n-1)/2=2;
n^2-n-4=0
Ans : 2
ANSWER:D
summation(x)=n(n-1)/2
n(n-1)/2=2;
n^2-n-4=0
Ans : 2
ANSWER:D